Vise.



PATBNTED OUT. 1'7, 1905.

B. NEWMAN.

VISE.

APPLICATION FILED 1\IAR.29.1905.

BENJAMIN NEWMAN, OF GATESHEAD, ENGLAND.

vise.

Specification of Letters Patent.

Patented Oct. 1'7, 1905.

Application filed March 29, 1905. Serial No. 252,746.

To ctZZ whom at may concern:

Be it known that I, BENJAMIN NEWMAN, a subject of the King of Great Britain and Ireland,and a resident of Gateshead,in the county of Durham, England, have invented certain new and useful Improvements in or Relating to Vises, of which the following is a specification.

This invention relates to Vises, and has for its object to provide-means whereby the pressure necessary to bring the jaws together to grip and hold the work or the like can be applied in a simple and eflicient manner. To this end and according to my invention the sliding jaw is traveled by a screwed adjusting-rod normally operated through worm or like gearing, which, however, is adapted to be disengaged when desired to permit of the adjusting-rod being operated directly when it is required to move the jaw through a fairly large distance.

I will fully describe one form of vise made in accordance with my invention in reference to the accompanying drawings, wherein- Figure 1 is a sectional elevation; and Fig. 2 a plan, partly in section.

Referring to the drawings, I employ in this form of my invention a front hollow fixedjaw a and a rear sliding jaw b, mounted on and traveled by a screwed adjusting-rod 0. For operating the adjusting-rod cl dispose on a cylindrical portion thereof and within the hollow iixed jaw a a worm or equivalent wheel (Z, adapted to be revolved by a worm or the like 0, suitably mounted within the jaw a on a spindle f, which is adapted to be rotated by convenient means, such as a handle or a ratchet-lever, engaging with one of its ends 1 5 The worm-wheel (Z is connected to the adjusting-rod 0 by a key or feather h, but is free to slide therealong, so that it can be moved out of or into engagement with the worm e, as desired, and this movement may be effected by a projection j on a revoluble disk 70, suitably mounted in the fixed jaw on a spindle m, engaging with a grooved extension 71 on the side of the worm-wheel 05, though any other suitable means may be employed for this purpose. Normally the worm e and the worm-wheel d are in engagement with each other, as shown, and the adjustingrod 0 is operated to travel the sliding jaw Z) by rotating the worm 1/, as above described; but, however, when it is desired to travel the sliding jaw a comparatively large distance the worm-wheel cl may be slid along the adjusting-rod (1 until it is clear of the worm as shown by the dot-and-dash lines in Fig. 1, by rotating the disk Z; through half a revolution by a box-key 0 or the like, and the adj ustingrod 0 can then be operated directl y by a handle 7) or the like, either secured to its outer end 1 or having a squared or similarly-shaped extension 0*, adapted to be inserted in a correspondingly-shaped recess s therein.

It will be readily seen that the adjustingrod 0 may be provided with a very coarse or quick-pitched thread, so that when it is operated directly by the handle 72 or the like the sliding jaw Z) will be quickly brought up to the object to be held, while the final adjustment may be obtained through the worm e and worm-wheel (Z.

When it is desired to successively hold a number of similar articles or pieces of work between the jaws a and 6,-a very slight operation of the worm a will move the sliding jaw b sufiicient to allow of one article or piece of work being removed and another substituted, and thus a considerable time will be saved that is at present lost when the ad justing-screw is operated directly to move the sliding jaw, as in such a case the jaw is almost invariably moved a greater distance than is necessary.

Although I have described the front jaw as being the fixed jaw, it may, if desired, be the sliding jaw; but in many instances, such as when the vise is used for holding work in shaping and similar machines, I prefer that the front jaw shall be the iixed jaw, as by this arrangement the greater thrust comes upon the fixed jaw and not on the movable jaw, as is at present customary.

If desired, the movable jaw 7) instead of being provided with a fixed boss or rigidly secured to a boss with which the adjusting-rod 0 engages to travel the jaw it may be pivoted to a boss 25, as at u, so that it may pivot, and so adapt itself to work having non-parallel sides. 1

What I claim, and desire to secure by Letters Patent, is-

1. The improved vise comprising the combination of a fixed jaw, a movable jaw, a screwed adjusting-rod gearing with said movable jaw, worm-gearing through which said adjustingrod is normally operated, and means for disengaging said worm-gearing to permit of the adjusting-rod being operated directly, substantially as set forth.

2. The improved vise comprising the combination of a fixed jaw, a movable jaw, a screwed adjusting-rod gearing with said movable jaw, a worm-wheel mounted on said adjusting-rod and free to slide therealong, a worm normally engaging with said worm-wheel, and means for sliding the worm-wheel along the adjusting-rod, substantially as and for the purpose set forth.

3. Theimprovedvise comprising the combination of a fixed jaw, a movable jaw, a screwed adjusting-rod gearing with said movable jaw, a worm-wheel mounted on said adjusting-rod and free to slide therealong, a worm normally engaging with said worm-wheel, a grooved extension to said wormwheel, and means for sliding said worm-wheel along the adjusting-rod comprising a pin mounted eccentrically on a revoluble disk, said pin engaging said grooved extension, substantially as and for the purpose set forth.

4. The improved vise comprising the combination of ahollow fixed jaw, a movable jaw, a screwed adjusting-rod gearing with said movable jaw, a worm-wheel disposed within said hollow fixed jaw and on said screwed adjusting-rod and connected thereto but free to slide therealong. a worm also disposed within said hollow fixed jaw and normally engaging with said worm-wheel, a grooved extension on said worm-wheel, and means for sliding-said wormwheel along the adjusting-rod comprising a pin mounted eccentrically on a revoluble disk, said pin engaging said grooved extension, substantially as and for the purpose set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

BENJAMIN NEWMAN. \Vitnesses:

EDMUND WARD PATTISON, HERBERT HOWARD. 

